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S. H. CALKINS.

DIVIDER AND REENFORCING STRIP.

APPLICATION FILED IAN. I9, |92I.

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7 5 7 5 /l :i L L Patented @ch 3l, i922.

entren stares SEWARD lEl. CALKENS, @F NEW YURK, N. Y.

DEVIDER AND 'REENFORQICNG STRIP.

Application nled January 19, 1921. Serial No. 438,439.

To all Iwiz-0m Hna/y cof/wcm.:

Be it known that ll, Snwnno H. Camillas, a citizen ot the United States, and a resident of the city of New York, Long llsland City, borough of Queens, in the county vof Queens and Sat-ate of New York, have invented a new and improved Bivider and Reenforcing Strip, of which the following is a full, clear, and enact descrip-tion.

rlhis invention relates to strips for concrete work and particularly for terrazzo coatings and has for an objectto providel an improved construction wherein the strip may be bent to the desired shape easily and then anchored correctly.

Another object in view is to provide a strip which will act as a dividing member for dividing concretework into sections and at the same time act as a reinforcement for the divided sections or blocks.

A further objectot the invention is to provide a dividing and reenforcing strip in which an uninterrupted metal plate is used for the dividing member and associated with anchors for maintaining the p-late at the proper depth.

ln the accompanying drawings- Figure 1 is aA fragmentary top plan view of a door showing a terrazzo mosaic construction and illustrating how the invention appears when in use.

Figure 2 is a top plan view on an enlarged scale of an unfinished section or terrazzo work with the "strip embodying the invention shown in position.

Figure 3 is a sectional view through Figure 2 approximately on -line 3 3. Y

Figure l is a fra entary perspective view oi? an anchor disc osing certair features of the invention.

vFigure 5 is a pe end of a strip embo. the invention.

lln the construction of concrete floors a concrete aggregate is applied 4to a given spaceand spread out in such a manner as to produce the .desired smooth surface. Where ective view showing one ying certain features ot the floor is compara-tively large .the concrete is usually divided into bloclrs by a line of brea-lragebut this line is not seen on'the surface as ornamental rooves are provided in line with the lineo breakage. ln producing very tine door edects, as for instance, provig a terrazzo mosaic dicultyis encountered as this forni of dooring is usually provided with certain motions having did'erent coloring from the remaining sectlons. -The same is true of ceilings, walls or other surfaces. ln providing a terranno wall, door or other surface the aggregate should be placed in position at approximately the saine time over the entire surface in order that it may properly cure simultaneously and thereby be properly ground. This grinding of the surface must take place at a certain stage in the curing so as to produce acproper surface. lf the grinding action is carried on too soon, more of the surface will be ground away than desirable and a coniparatively high polish will not be presented while if the surface is too old it will be hard to grind properly within a reasonable time. By the present invention. means have been provided which will permit. different colored bloc-ks, stripes or sect-ions to be applied at the same time and, consequently, to cure simultaneously so that the entire surface may be ground at the same time with equally good results on all parts of the door.

Referring to the accompanying drawings by numerals, 1 indicates a section of dooring constructed according to the present invention. lin 'constructingthis Hoor it will be noted that there is provided blocks 2 of one color having an interior section 3 of a second color and a border d of another color. These sections and borders may be of any shape desired and the aggregate forming these sections is held in proper place by various strips 5. These strips 5 may be of brass or other suitable material of any desired height with a row of apertures 6 arranged preferably along a. central line. `lPositoned in these apertures are anchors 7 having bent ends 8, said ends 8 acting as anchoring means for preventing adjacent blocks or sections from separating during the curing action. The adhesive quality of the aggregate in connection with the strips 5 also assist 1n holding the blocks in proper position as the shrinkage is very small. ln addition to acting as anchors for holding lthe adjacent. blocks together the member 7 acts as supporting anchors for the dividing strip 5 and limits its downward movement into the base concrete 9 which is po sitioned on a suitable foundation 10 and which receives the aggregate 11. Preferably, the foundation 10 is provided 'and formed in any desired manner so as to produce the l repair-thickness and a substantially level The base 9 is then applied te the foundation 410 and is spread out so as to, have a Substantially even upper surf-ace.

After the concrete base has been properly placed in position and While it is still green, the strips 5 are forced downwardly thereinA until the anchors 7 engage the upper surface i thereof. After all of the strips 5 have been placed in position the aggregate l1l is then deposited in the various places according to the -color design desired and thetaggregalte is thenrolled so that .itzwill be compressed action-the strips 5 `Jvill -be forced downwardly toman undesirable extent. exceptffor the supporting anchors 7 which hold-,they same in proper position. While'fallowing the rollers tocompress-tbe aggregate between the various strips.

By .the use-of the anchors 7 .a propel-1an choring. support is provided foi-.the strips 5 While at the Sametime any of these-anchor-y ingdevices may -be Aeasily removed. Where a transverse strip-5 is to 'be provided andwhere said strip would interfere Withfthe" member 7. It will. also be noted that by.v reason .of-the tact thatlthe strip 5 is one conA tinuous strip havingy an.upp.er and lower straight edge, the samel may beeasily bent into-a circ-le', or into any. other shape. desiredv 1 ,ri-siasi easily and Withoutv interfering with the anchors 7 as said anchors are notfapplied until after the strips have been bent tothe desired sha e. Vghatll claim is :-A Y

1. A dividingand reenforeing strip comprising a flat metal strip having straight upper andlower .edges .and a rovi7 of apertures arranged on a central line between said edges and an anchoring'memberafor eachf saidapertures extending.-Y loosely therethrough to the proper consistency. ln' this rolling,

and .formedfwith Abent ends acting as anchoring l or gripping means. for locking adj acent,

sections .of the. oor togetluatz- 2.. A strip actingpas a divider for-terrazzo.'

or plastic composition floors -comprising a substantially flat Strip of metal-.having apel-,

tures formed therein intermediate .its upper and lower edges, and a tie.rod ,extending through said apertures and projecting laterally from `one side of said strip.-

3..,A strip .acting asV ardivider for terrazzo or plastic composition floors comprising a substantially Hat strip of metal having apertures formed therein, and a-.tierod extend ing through. said apertures and lprojecting rod being` bent to forman anchor..

,55 laterally from one side,.of.saidstrip,^,sa-id tie- 

